various header cleanups, some related to _BSD_SOURCE addition
authorRich Felker <dalias@aerifal.cx>
Wed, 23 May 2012 02:04:55 +0000 (22:04 -0400)
committerRich Felker <dalias@aerifal.cx>
Wed, 23 May 2012 02:04:55 +0000 (22:04 -0400)
commit671ffab7769b4dfd873f0c585444823a67dc56bc
tree434ab7191fca83540eb6fc8262ec86902634f8ec
parent9f370fa99e2c25a717a672ee0a766d56e9d68a9a
various header cleanups, some related to _BSD_SOURCE addition

there is no reason to avoid multiple identical macro definitions; this
is perfectly legal C, and even with the maximal warning options
enabled, gcc does not issue any warning for it.
include/fcntl.h
include/sys/file.h
include/unistd.h